Find the mean and range. 18 23 10 39 22 17 16 15 a. mean = 20; range = 32 b. mean = 20; range = 29 c. mean = 18.1; range = 28 d. mean = 21.9; range = 29

Option b is correct.

mean = 20 ;  range = 29

Step-by-step explanation:

Formula for mean is given by:

Given that:

18, 23, 10, 39, 22, 17, 16, 15

Here,

Total number of observations(n) = 8

⇒

Therefore, the mean for the given data is, 20

Formula for range (R) is given by:

From the given data:

and  

then;

Therefore, the range for the given data is, 29

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v